Question

The total number of protons in 16 gram of methane is
1) 3.0115 x 1024
2) 6.022 x 1024
3) 2.0478 x 1024
4) 4.0956 x 1024​

Answer 1

Option B is correct.

Explanation:

(i) No. of molecules in 1.6g .

of methane <br> Molar mass of methane (CH⁴) = 12 + 4 × 1 = 16.

g <br> 16 g of methane contain molecules=6.002 ×10²³

<br> 1.6 g of methane contain molecules =6.002×10²²

<br> (ii) No. of electrons in = 6.002 ×10²²

molecules of methane <br> 1 molecule of methane contains electrons = 6+4=10.

<br> 6.002×10²²

molecules of methane contain electrons 6.002 ×10²²× 10 =6.002 ×10²³ .